Z05 Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out
The ICD-10-CM code for Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out is Z05 (FY2026). It is a non-billable category code — select a more specific code below for claims.
Classification
- Section
- Z00-Z13: Persons encountering health services for examinations (Z00-Z13)
- Category Z05
- 19 codes (15 billable)
- FY2026 Status
- Stable since FY2024
Inclusion Terms
- This category is to be used for newborns, within the neonatal period (the first 28 days of life), who are suspected of having an abnormal condition, but without signs or symptoms, and which, after examination and observation, is ruled out.
Official Coding Guidelines
Use of Z05 codes (newborn suspected condition ruled out)1) Use of Z05 codes Assign a code from category Z05, Observation and evaluation of newborn for suspected diseases and conditions ruled out, to identify those instances when a healthy newborn is evaluated for a suspected condition/disease that is determined after study not to be present. Do not use a code from category Z05 when the patient is documented to have signs or symptoms of a suspected problem; in such cases code the sign or symptom.
Z05 on other than the birth record2) Z05 on other than the birth record A code from category Z05 may also be assigned as a principal or first- listed code for readmissions or encounters when the code from category Z38 code no longer applies. Codes from category Z05 are for use only for healthy newborns and infants for which no condition after study is found to be present.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026